I have used a copper pipe with end caps one cap has a small hole. To use place cloth in pipe (I use a alcohol burner) heat till no smoke appears and you're done.

Lee
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It's the year 2022...People are still the same
They'll do anything to get what they need.
And they need Soylent Green.
http://datacore.sciflicks.com/soylent_green/sounds/soylent_green_people.wav
RIP OBG